baber/WOPTO huggingface dataset:
Patent FR-3121985-B1 (FR)
Title: Procédé de communication de la consommation de fluide mesurée par un module de mesure
Inventor: VIEREN JEAN-BAPTISTE
IPC: H03M7/30
Filed: 2021-04-15
Granted: 2023-04-14
Abstract: L’invention concerne un procédé de communication de la consommation de fluide mesurée par un module de mesure (1) pendant une pluralité (m) de périodes temporelles (j), le procédé comportant les étapes suivantes : (E0, E1) Comptabilisation de toutes les consommations périodiques (Vj) de fluide mesurées ; (E3) Encodage de la plus petite consommation périodique (Vmin) de fluide en une valeur initiale (doffset); (E4, E51) Encodage selon un même nombre de bits donné d’au moins l’une desdites consommations périodiques de fluide en une valeur codée (dj) sensiblement égale à la différence entre cette consommation périodique de fluide et la valeur initiale ; (E6) Concaténation de la valeur initiale et de l’ensemble des valeurs codées, triées chronologiquement, en une trame de données (Fm) ; (E7) Transmission de ladite trame de données à un terminal distant du module de mesure à l’issue de la fin de la pluralité de périodes.  Figure à publier avec l’abrégé : Fig. 1
Patent FR-3124330-B1 (FR)
Title: Système optique de mise en forme temporelle et procédé
Inventor: GLEYZE JEAN-FRANÇOIS
IPC: H01S3/10
Filed: 2021-06-22
Granted: 2023-06-16
Abstract: Système optique de mise en forme temporelle et procédé Système de mise en forme électro-temporelle d’un signal optique, comportant :  au moins une boucle optique comportant :au moins un moyen de modulation de l’amplitude, commandable électriquement, du signal optique circulant dans la boucle,au moins un moyen d’injection du signal optique à mettre en forme dans la boucle,au moins un moyen d’extraction du signal optique mis en forme par le moyen de modulation de l’amplitude, après que le signal optique ait effectué un nombre de passages prédéfini dans le moyen de modulation de l’amplitude en circulant dans la boucle,au moins un générateur de forme d’onde arbitraire relié au moyen de modulation de l’amplitude pour le commander.  Figure pour l’abrégé : Fig. 1
Patent FR-2443551-B1 (FR)
IPC: E05D7/06
Filed: 1978-12-07
Granted: 1983-05-13
Abstract: 1. Device for hinging a leaf (1) forming part of a gate giving access to a ramp or sloping ground, comprising a top hinge (3) and a bottom hinge (4) each including a support plate (3b, 4b) carried by a support which is fixed in relation to the ground, a lug (17, 11) fastened to the gate leaf and, between these two parts, pivot connection means (6, 7, 18 and 9, 10, 16) which are situated in a vertical plane forming an angle of about 45 degrees with the vertical plane of the closed gate and situated outside the space swept by the leaf when it passes from the open position to the closed position, the device being characterised in that said pivot connection means (9, 10, 16) which forms part of the bottom hinge (4) is mounted on the one hand in an oblong slot or buttonhole (8) formed in said support plate (4b) fastened to the fixed support, the axis of this slot extending perpendicularly to the pivot means of the other hinge and being situated in said plane at 45 degrees, and on the other hand on an intermediate connection member (14) carried by the leaf, which connection member being adapted to be displaced relative to the leaf and locked relative to the latter with the aid of a locking means (13), and in that means are provided for guiding the displacement of said intermediate member (14) in a direction coinciding with that of said oblong slot or buttonhole (12) when the gate is closed.
Patent FR-2461608-B1 (FR)
IPC: B60J7/04
Filed: 1979-07-16
Granted: 1983-07-18
Abstract: 1. A driving device for opening and closing a movable panel (5) forming for example an opening roof (1) of an automotive vehicle, of the type comprising at least one toothed rack (2) secured to the stationary portion (3) of the roof and which meshes with means (4) for driving in translation the movable panel (5) with respect to the said stationary portion (3), as well as one or several inclined surfaces (20) cooperating with rollers or skids (21) to allow raising and lowering the movable panel (5) upon opening and closing, respectively, of the roof (1), characterized in that the said toothed rack (2) provided with the said inclined surface (20) is mounted longitudinally movable on the stationary portion (3) of the roof through the medium of oblong apertures (16) provided in the toothed rack and in which extend pins (17) secured to the stationary portion (3), and is temporarily locked on the said stationary portion (3) through the medium of a pawl (14) controlled by one endmost position of the movable panel (5).
Patent FR-2435077-B1 (FR)
IPC: G04B3/04
Filed: 1979-08-31
Granted: 1982-12-10
Abstract: This disclosure relates to a watch case which includes a case body housing a movable element actuated by a slidably mounted pushbutton for effecting movement of the movable element through a rod connected to the pushbutton, the rod having a portion which transfers the sliding movement of the pushbutton to the movable element, and guide means in the form of grooves, bores or guide surfaces for guiding the movement of the rod relative to the case body during the movement of the rod under the influence of the sliding movement of the pushbutton.
Patent FR-2555170-B1 (FR)
Inventor: MIGNANI GERARD
IPC: C07C57/03
Filed: 1983-11-18
Granted: 1986-07-18
Abstract: Unsaturated compounds of the formula: in which: Q denotes alkyloxycarbonyl, cyano or formyl, R1 denotes a saturated or unsaturated aliphatic radical, R2 denotes a hydrogen atom or an alkyl radical, R3 denotes a hydrogen atom or an aliphatic radical and R4 denotes a hydrogen atom or a saturated or unsaturated aliphatic radical which may be substituted, are useful as intermediates in the synthesis of vitamin E.
Patent FR-2555961-B1 (FR)
Inventor: BEGNATBORDE JEAN-PHILIPPE
IPC: B65B11/04
Filed: 1983-12-01
Granted: 1986-09-12
Abstract: 1. Installation enabling a load to be wrapped with a sheet of predrawn plastic material, by regulating the quantity of sheet supplied to the quantity of sheet required for the wrapping of the load, which installation comprises at least one reel of drawable sheet and at least one drawing device (5, 21, 22), disposed between said reel and the load to be wrapped, characterized in that the installation comprises means (13, 14) for measuring, at each instant, the quantity of predrawn sheet used for making up the envelope of the load and the quantity of predrawn sheet supplied at the outlet from the drawing device, and means (15) for comparing this quantity of sheet actually used with the quantity of predrawn sheet which is supplied, the outlet from these comparison means (15) being connected to a device for controlling the supply of the motor or motors (8, 9; 35) for driving each drawing device, in such a manner as to correct, progressively as the operation of wrapping the load (1) proceeds, the quantity of predrawn sheet supplied so that it remains equal to the quantity of sheet used for making up the envelope of the load, without intervention upon the drawing of the sheet.
Patent FR-2585103-B1 (FR)
Inventor: DEVOUASSOUX SERGE
IPC: F16J15/32
Filed: 1985-07-18
Granted: 1989-06-02
Abstract: 1. Sealing ring of the radial type comprising a reinforcement, a body (5) made notably of elastomer and a sealing lip (9) made of a material with low frictional properties, notably a fluororesin such as in particular polytetrafluoroethylene, bonded onto the said body and projecting radially from the latter, characterized in that it comprises an annular recess (12) located in the surface of the said lip (9) opposite the said body (5) and in the part of the lip not bonded to the body, in the immediate vicinity of the peripheral edge (7) of the said body.
Patent FR-2621486-B1 (FR)
Inventor: BIGG DENNIS
IPC: A61K31/415
Filed: 1987-10-07
Granted: 1990-01-26
Abstract: Use of pyrrolo[3,2,1-hi]indole derivatives for obtaining a medication intended for the treatment of diabetes.
Patent FR-2642245-B1 (FR)
Inventor: BERNARDINI FABRICE
IPC: H04J3/16
Filed: 1988-12-30
Granted: 1991-04-05
Abstract: The field of the invention is that of data transmission, within the telecommunications sector, in accordance with the ISO standardising protocol, particularly the reception of HDLC frames transmitted by multichannel PCM link. <??>The essential aim is to provide a system comprising means common to all the channels for decoding and processing frames, whilst taking account of the fact that each frame must undergo a specific processing. <??>According to the invention, this system includes multiplexed means for receiving HDLC frames, which are common to all the channels and which provide, for each PCM channel, in one frame, a reception word including one data byte and one state datum relating to this byte; means (84, 85, 86) for addressing transcoding means (80) with a datum relating to the length of each frame received, and a programmed automatic processing unit (76) receiving data bytes and at least one processing datum originating from the transcoding means (80), so as to accomplish, in respect of this byte, the processing indicated by the processing datum.
Patent FR-2651339-B1 (FR)
Inventor: JEAN-PIERRE DUPRAZ
IPC: G05B5/01
Filed: 1989-08-30
Granted: 1991-10-04
Abstract: The device according to the invention comprises a summing circuit (1) deriving a control signal (2) on the basis of an input signal (3) and of a correction signal (4), an element (5) for processing the said error signal, followed by the said servo system (6) generating an output signal (7). The correction signal is derived by a correction module (8); it is a function of the input signal and of the output signal. <??>The invention will find application especially in servo amplifiers and servo mechanisms.
Patent FR-2658659-B1 (FR)
Inventor: VERNIER JEAN-PIERRE
IPC: H01H33/32
Filed: 1990-02-16
Granted: 1996-07-19
Abstract: DC contactor for high power, comprising a main conduction circuit with fixed contacts (4) and moving contact (3), and a cutoff circuit with fixed contact (7A) and lever (6) rotatable about an axis (8) and provided at its end with a contact (7), with operating member (16) provided with a thruster able to repel a moveable core (20A) towards the rotary lever by way of at least one spring. Its moving conduction contact (3) is arranged between the rotary lever (6) and the fixed conduction contacts (4) and is supported by the moveable core at a point situated between the axis (8) and the cutoff contact (7) of the rotary lever.
Patent FR-2660555-B1 (FR)
Inventor: COURTEILLE FREDERIC
IPC: A61K31/192
Filed: 1990-04-06
Granted: 1994-09-16
Abstract: A novel pharmaceutical form of ketoprofen, in particular capsules containing an oleaginous solution of a ketoprofen salt, and preferably oleaginous capsules of sodium ketoprofenate, are described.
Patent FR-2670202-B1 (FR)
Inventor: ALFRED SCHWOB YVAN
IPC: C05C1/00
Filed: 1990-12-05
Granted: 1994-06-10
Abstract: PCT No. PCT/FR91/00965 Sec. 371 Date Sep. 15, 1993 Sec. 102(e) Date Sep. 15, 1993 PCT Filed Dec. 4, 1991 PCT Pub. No. WO92/10443 PCT Pub. Date Jun. 25, 1992.The method relates to the production of phospho-nitrogenous products soluble in neutral ammonium citrate and wherein free urea does not remain in significant amount in such products. Most of the free urea is involved in a ureic combination of calcium sulphate. Tricalcic phosphate is reacted with a reactant obtained by mixing sulfuric acid and urea. The process is particularly useful for the manufacture of fertilizers.
Patent FR-2676617-B1 (FR)
IPC: A01M29/32
Filed: 1991-05-23
Granted: 1994-02-04
Abstract: Device for protection against birds, characterised in that: - the support has the shape of a tong (2) equipped with a groove (5) having an inverted T shaped cross-section, and opens up, - the spikes (4) are needles equipped with a head (7) which is positioned in the groove (5).
Patent FR-2703067-B1 (FR)
Inventor: HEDI MERCHAOUI MED
IPC: C10M175/02
Filed: 1993-03-22
Granted: 1995-08-04
Abstract: Process and plant for the regeneration of spent oils comprising: a tank (2) for the storage of spent oils; preheating means (3) for the preheating of spent oils; means (4) for the storage of a strong base; means (5) for mixing the strong base in a predetermined proportion with the spent oils; waste elimination means (10, 14).
Patent FR-2715940-B1 (FR)
Inventor: SODOYER REGIS
IPC: C07K16/00
Filed: 1994-02-10
Granted: 1996-04-26
Abstract: On the basis of a first repertoire of genes coding for a population of one of two kinds of polypeptides capable of being combined, particularly an antibody light chain variable region, and at least one gene, and preferably a second repertoire coding for the other kind of polypeptide, particularly an antibody heavy chain variable region, the genes from the first repertoire are inserted into a first vector to form a vector population and the genes from the second repertoire are inserted into a second vector, at least one of said vectors being a recipient for the expression of both genes as polypeptides irreversibly combined with the outer surface of the product of said vector.
Patent FR-2751838-B1 (FR)
Inventor: BATAILLE ANTOINE
IPC: A01G1/00
Filed: 1996-08-01
Granted: 1998-10-30
Abstract: The pallet (1) has a perforated base (2), with a polygonal form, pref. quadrilateral and having an edge (3), to carry a lawn panel. At least one of the side edges (4) of the pallet has a lower side (4) which is chamfered (5) to cooperate with a fork (6) which is tapered and movable to position the pallet on the fork. Two opposed sides of the pallet can have a chamfer at their lower edges. The base of the pallet can be reinforced by one or more cross bars (7). The base can have rings to aid removal of the pallet.
Patent FR-2784464-B1 (FR)
Inventor: CHOJNACKI ANDRE
IPC: G01N21/59
Filed: 1998-10-08
Granted: 2000-12-22
Abstract: An optical measuring head 10 of an automatic chemical or biochemical reaction analyzer comprises a first calorimetric analysis detector 12 controlled by a light source 20 associated to an optic fibre 28 for transmission of the light beam to one of the sides of a reaction analysis plate 18. A photodetector device 37 is arranged on the opposite side to collect the light beam emerging from the cup 16. The light source 20 and the reaction analysis plate 18 are stationary whereas the measuring head 10 is mounted on a U-shaped mobile support 19 framing the parallel opposite faces of the analysis plate 18 and able to be moved by a drive mechanism 48 facing a predetermined cup 16. The optic fibre 28 has one end secured to the fixed light source 20 and an opposite end arranged in a housing 30 of the mobile support 19.
Patent FR-2788992-B1 (FR)
Inventor: CHEVALIER JEAN LOUIS
IPC: A63C9/086
Filed: 1999-02-02
Granted: 2001-04-06
Abstract: Boot sole (42) is provided with a transverse bar (38) which engages between a support (11) and a self-locking cam (29). The support is integral with a sliding part (10) and the cam is mounted on a sliding part (19). These two parts are mounted in a slide (2,3) and drawn towards each other by springs (16). The bar can be released by a lever (32).
Patent FR-2792000-B1 (FR)
Inventor: GALIBERT FRANCIS
IPC: C12Q1/6876
Filed: 1999-04-08
Granted: 2003-04-11
Abstract: The invention relates to a Happy Mapping type method for mapping a DNA molecule comprising a step enabling ad infinitum amplification of the DNA of each panel, consisting of the following: (i) a first amplification with the aid of a primer comprising 10-30 nucleotides defined at extremity 5' thereof, and 5-10 random nucleotides at extremity 3' thereof, in addition to (ii) a second amplification with the aid of a primer comprising at least the oligonucleotides defined at extremity 5' of the primer used in stage i.
Patent HU-223649-B1 (HU)
Title: Connecting element for connecting at least two wooden construction parts and a joint plate
Inventor: MATTLE PAUL
IPC: E04B1/26
Filed: 1998-06-02
Abstract: The invention relates to a connection between two wooden construction parts (2 and 3). According to the invention, a joint plate (4) is introduced, the base part (5) of said joint plate (4) being connected to the wooden construction part (2) so that it is flush therewith, by means of screws (7). Said joint plate (4) is pushed into a slit (8) in the wooden construction part (3) and the appropriate number of connecting elements (1) are then introduced, passing through the wooden construction part (3) and the joint plate (4). A connecting element of the type used has a boring part (11) at one end and a tool contact part (12) at the other end. The material which is worked off is taken up by a segment with a reduced cross section (14) and corresponding chucking grooves (13). The connecting element can also be secured axially after placement by means of a thread (15) at one end of said connecting element. After placement, the connecting element sits in such a way that it fits perfectly in the self-made bore as a fixing element between the joining plate (4) and the wooden construction part.
Patent HU-223797-B1 (HU)
Title: Lock
Inventor: KOTTERHEIT GUENTER
IPC: E05B55/06
Filed: 1999-08-12
Abstract: The invention relates to a lock (1) with a latch bolt (9) which protrudes from the lock housing (2). The tail (8) of the latch bolt, which is displaceably guided in the housing, can be pulled back through the action of an arm (20) of a spring-mounted pusher nut (21) and can be locked forwards and backwards through a locking action, by means of a key, a closing cylinder (45), a second nut (47, 49) or similar after a tumbler has first been lifted. A tumbler which can be lifted by a bit (46, 48) is configured in the form of a one-armed lever bar (24). Said lever bar forms turning recesses (25, 26) in which a turning pin (16) on the side of the latch bolt tail engages. The lever bar is mounted around a stay pin (29) located above a latch bolt head (10) on the housing side.
Patent HU-229172-B1 (HU)
Title: Built-in safety device and key for a safety lock
Inventor: KELLER ERNST
IPC: E05B9/08
Filed: 1999-04-09
Abstract: The invention relates to a built-in safety device comprising a housing (3) and a rotor (4) mounted therein. Tumblers (8) are mounted in the housing (3) and in the rotor (4). The maximal length (A) of the built-in safety device (1) is approximately 40 mm, and the effective part (2c) of the key (2) is essentially as long as the rotor (4). In addition, the rotor (4) is constructed as one piece and can be operated from both sides thereof. The inventive built in safety device can be installed in a mortise lock more easily than a cross-key bit safety device and permits the production of a locking system.
Patent HU-230342-B1 (HU)
Title: Pharmaceutical composition for the treatment of acute disorders
Inventor: PETTERSSON ANDERS
IPC: A61K47/34
Filed: 1999-09-24
Abstract: A pharmaceutical composition for sublingual administration is described. The composition comprises buprenorphine in the form of microparticles adhered to the surfaces of carrier particles, which are larger than said microparticles and are water-soluble; and a bioadhesion and/or mucoadhesion promoting agent.
Patent HU-228223-B1 (HU)
Title: Method for applying an opening device to a packaging material and package obtained thereby
Inventor: MOLIN OLA
IPC: B31B1/84
Filed: 2001-07-27
Abstract: A method for applying an opening device (3, 3', 3'') to a sheet packaging material for packaging pourable food products, comprising the step of fitting a frame (10, 30) of the opening device (3, 3', 3'') to the packaging material in a position, in which it extends across a crease line (14, 14', 35) designed to define an edge (15, 15', 36) of the finished package (1, 1', 1'').
Patent HU-228957-B1 (HU)
Title: Use anti-hla-antibody for production of pharmaceutical compotisions for the treatment of diseases involving prolierative immune response
Inventor: DALGLEISH ANGUS G
IPC: A61P35/00
Filed: 2002-07-02
Abstract: Anti-HLA and other antibodies are present in goat serum after injection of HIV antigenic material, and form the basis for a most surprisingly effective treatment of HIV, multiple sclerosis and other conditions.
Patent HU-221910-B1 (HU)
Title: Expandible stent
Inventor: CREWE KATHERINE H
IPC: A61F2/958
Filed: 1996-07-25
Abstract: A stent has a tubular body with longitudinal struts interconnected by multi-bar linkages. The struts inhibit foreshortening of the body and relative rotation between the links in the linkages permits radial expansion. The links are plastically deformed as they are expanded to maintain the expanded diameter.
Patent HU-220452-B1 (HU)
Inventor: PETROCZI ISTVAN
IPC: A01H5/10
Filed: 1999-06-04
Abstract: A találmány tárgya GK Miska fajtanevű, középérésű, produktív, javítósütőipari minőségű, nagy ezerszemtömegű, szárazságtűrő őszi búza,amely a GK 44–87/GK Öthalom magyar búzafajták keresztezésébőlszármazik, növekedési típusában félig felálló-átmeneti, a zászlólevéllevélhüvelyének viaszossága közepes-erős, kalászalakja párhuzamos,színe éréskor fehér, hosszúsága rövid-közepes, viaszossága közepes-erős, a kalász csúcsán szálkacsonk van, a legfelső orsótag konvexoldalának szőrözöttsége erős, a kalászkapelyva vállalakja egyenes,vállszélessége széles, a kalászkapelyva foghossza nagyon rövid, akalászkapelyva fogalakja egyenes-kissé görbült, a kalászkapelyva belsőszőrözöttsége közepes-erős, a szem színe piros, színeződése fenollalerős. Jellegzetessége, hogy a növény korai-- közepes időpontbankalászol, a növény alacsony-közepes termetű, a zászlólevélen afülecske antociános színeződése hiányzik vagy nagyon gyenge, a szárbéla metszetében vékony átmérőjű, a kalász tömöttsége laza, a szálka vagyszálkacsonk a kalász csúcsán közepes hosszúságú, a külső toklász fogakissé görbült. ŕ
Patent HU-223021-B1 (HU)
Inventor: KRADEPOHL PAUL
IPC: G21C17/017
Filed: 1996-11-13
Abstract: A találmány tárgya eljárás armatúrák üzemképességének ellenőrzésére,amelynek során megállapítják és egy előre meghatározott értékkelösszehasonlítják egy, az armatúrára jellemző mennyiségnek legalább egymérési értékét. A mérési értéket az armatúra hideg és nyomásmentesállapotában meghatározzák, és az armatúrára jellemző mennyiségnek azarmatúra funkciómodelljéből analitikusan meghatározott értékévelösszehasonlítják. Ennek az analitikusan meghatározott értéknekmeghatározzák egy felső és egy alsó határértékét, amelyek az armatúramég megengedhető állapotaihoz vannak hozzárendelve (méretezésitartalék). Az armatúra üzemképességét jelzik ki, ha a mérési érték afelső és az alsó határérték között van. ŕ
Patent JP-2791658-B1 (JP)
Title: 靴の底およびそれを含む靴ならびにサンダル
IPC: A43B7/00
Filed: 1997-02-25
Granted: 1998-03-27
Abstract: 【要約】
【課題】  足のあおり動作を容易に行なうことが可能な 靴の底を提供する。
【解決手段】  靴の底をつま先部１０と主要部２０とか ら構成する。つま先部１０は、１つの上面Ｆ（第１の上 面）と１つの底面Ａ（第１の底面）とを有する。主要部 ２０は、１つの上面Ｅ（第２の上面）と、３つの底面 Ｂ，ＣおよびＤ（第２、第３および第４の底面）とを有 する。主要部２０の底面Ｃの外側部分の厚み（ｔ２）は 内側部分の厚み（ｔ１）よりも小さくなるように形成さ れている。
Patent JP-2883069-B1 (JP)
Title: グループ暗号通信装置
IPC: G09C1/00
Filed: 1998-02-19
Granted: 1999-04-19
Abstract: 【要約】
【課題】  多数の移動端末機に対して一斉通報を行なう グループ暗号通信装置において、端末機を紛失したとき に、短時間で暗号鍵を更新する。
【解決手段】  暗号管理のために通信グループ内にｎ個 の管理サブグループを設ける。各端末機には、端末機ご とに異なる第１の暗号鍵Ｋ(i 1 )〜Ｋ(i 4 )と、通信グルー プ内の全ての端末機で同一のアプリケーション情報伝送 用の第２の暗号鍵Ｋと、管理サブグループごとの暗号鍵 更新に使うｎ個の第３の暗号鍵Ｋ１〜Ｋnを持たせる。 ただし、ｊ番目（ｊ＝１〜ｎ）の管理サブグループにあ っては、第３の暗号鍵Ｋ1〜ＫnのうちのＫjだけ、Ｋjに 代えて無効暗号鍵Ｋzを記憶せしめる。例えば、２番目 の管理サブグループの端末機の１つを紛失したときに は、第３の暗号鍵Ｋ 2 で第２の暗号鍵Ｋを暗号化して配 信し、２番目の管理サブグループの端末機には、第１の 暗号鍵Ｋ(i 2 )で第２の暗号鍵Ｋを暗号化して個別に配信 する。紛失端末機の管理サブグループ以外では管理サブ グループ単位で一斉更新するので、短時間で暗号鍵を更 新でき、セキュリティを確保できる。
Patent JP-2951311-B1 (JP)
Title: 移動通信ダイナミックセキュアグルーピング通信方式
IPC: H04L9/08
Filed: 1998-03-12
Granted: 1999-09-20
Abstract: 【要約】
【課題】  グループの構成が常に変化する移動通信のグ ループ通信において、同報メッセージの秘密を確保する ためのグループ鍵を不要にする。
【解決手段】  端末Ａ，Ｂ，Ｃからなるグループ(a)に おいて、端末Ａから端末Ｂ，Ｃにグループ通信を行なう 場合(b)、メッセージを送信単位に分割して、送信単位 ごとに異なる共通暗号鍵により暗号化する。共通暗号鍵 を端末Ａと端末Ｂの公開暗号化鍵で暗号化する。暗号化 されたメッセージと、各端末Ｂ，Ｃごとに暗号化された 複数の共通暗号鍵をまとめて各受信端末Ｂ，Ｃに同報送 信する。受信端末Ｂ，Ｃでは、公開鍵の復号鍵で共通暗 号鍵を復号し、復号した共通暗号鍵でメッセージを復号 する。他の端末は、共通暗号鍵を復号できず、送信単位 の異なる共通暗号鍵も使えないので、メッセージの秘密 は確保できる。端末Ｂから送信する場合(c)、端末Ｃか ら送信する場合(d)も同様である。端末対応の公開鍵を 使い、グループ鍵を必要としないので、公開鍵の復号化 鍵のみを秘密に保管するだけでグループ通信の秘密を確 保することができる。